MAC4DCNT4

Triacs Overview

The MAC4DCNT4 is a silicon bidirectional thyristor (Triac) from the MAC4DCN series, manufactured by onsemi. It features an 800 V peak repetitive off-state voltage and supports a 4.0 A RMS on-state current at a case temperature of 108°C. The device is housed in a DPAK-3 surface-mount package (CASE 369C). Key electrical characteristics include a maximum holding current of 35 mA, a gate trigger current up to 35 mA, and a peak on-state voltage of 1.6 V. It operates within a junction temperature range of -40°C to +125°C and offers high immunity to dv/dt (500 V/µs) and di/dt (6.0 A/ms).

Triacs Feature Summary

• Small size surface mount DPAK package design for industrial and consumer applications.
• Passivated die construction ensuring reliability and uniformity.
• High immunity to rate of change of commutating current (di/dt) and off-state voltage (dv/dt).
• Epoxy material meets UL 94 V-0 flammability rating.

Triacs Applications

• Motor control systems.
• Process control circuits.
• Temperature regulation devices.
• Light dimming applications.
• Speed control mechanisms.

Triacs Procurement Notes

Verify the specific ordering suffix to confirm the packaging format. The 'T4' suffix indicates availability in tape and reel quantities of 2500 units. Confirm that the selected variant matches the required voltage rating and package style for the intended PCB layout. Ensure compliance with RoHS directives if lead-free components are specified for the assembly process.

Triacs Selection Notes

Select the MAC4DCNT4 when an 800 V blocking voltage is required for AC load switching. This component is suitable for designs needing a 4.0 A RMS current capacity in a compact surface-mount footprint. Consider the thermal resistance values for heat dissipation calculations. Verify that the gate trigger requirements align with the driving circuit capabilities for reliable turn-on across the operating temperature range.

Triacs Part Context

This component belongs to the MAC4DCM/MAC4DCN family of silicon bidirectional thyristors. The 'N' designation specifically denotes the 800 V voltage rating variant, distinguishing it from the 600 V 'M' version. Both variants share identical current ratings and package dimensions, allowing for potential design flexibility based on voltage stress requirements in the application circuit.

Triacs Replacement Considerations

The MAC4DCMT4 serves as the non-rohs equivalent or alternative within the same series offering identical electrical specifications and pinout compatibility. Designers should verify that any substitute maintains the same DPAK-3 package dimensions and thermal characteristics to ensure seamless integration without modifying the existing PCB footprint or cooling solutions.